SBIG FW5-8300 5 Position Filter Wheel with Baader 36mm LRGB Filters

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SBIG FW5-8300: Picture 1 regular $995.00

About SBIG FW5-8300

The SBIG FW5-8300 5-Position Filter Wheel with Baader 36 mm LRGB Filters Holds five 36 mm drop in filters for un-vignetted imaging at any f/ratio with the ST-8300 or ST-4000XM cameras. It is now through the prototype stage. There have been two modifications to the original design that have required separate prototyping. It is a single carousel design with a new filter retaining system that makes changing filters easier than with individual retaining screws for each filter. The carousel is also interchangeable for swapping out 5 filter sets all at the same time. The telescope side of the filter wheel has a round adapter plate with standard t-threads. This piece can easily be removed and replaced with an optional Nikon lens adapter.

The Baader Blue filter passes virtually all of the H-Beta and O-III lines, while the Green filter is able to capture all of the O-III line, without encroaching into the H-Beta line. None of the light is wasted by either filter. In this way, O-III is represented as it should be, a teal (blue-green) color and H-Beta is captured solely in the blue. Never before has this degree of separation been achieved and with such high transmission of both lines. In addition, the Green and Red filter passbands nearly touch, leaving only a sharp notch to block out the primary Mercury/Sodium light pollution line at 580 nm. The high transmission everywhere else delivers the shortest combined exposures possible with every detector.

SBIG FW5-8300 Features

  • Small footprint - 5 x 7 inches
  • Thin design - adds only 20mm backfocus (Total backfocus for ST-8300 with CFW5-8300 is 38mm)
  • Allows the use of an optional Nikon lens adapter with the filter wheel
  • Uses the camera's I2C port for power and commands. No additional cable to computer or power supply is required

SBIG FW5-8300 Specifications

Filter Wheel Size
Sbig ST-8300 and ST-4000 Cameras
22 oz (6623.6g) without filters
Mfr #
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